G4S is the biggest international security service company in the world. AS G4S Latvia provides a wide range of security services to more than 13,000 physical and legal persons, including leading companies in various industries, as well as clients in the government sector. A new multi-functional office building was built, where the object’s fire alarm, warning system and broadcasting system construction was our responsibility, as well as telephone and computer network construction. During the project, specific conditions were in place, for example, the client originally had a requirement for a specific fire panel by Aritech GE, while the smoke detectors were produced and upgraded according to the specific needs of G4S. As this was a new building, according to modern trends, part of the wall was without interior finishing, therefore, the assembly had to be very neat and precise, to fit the style of the building.